It is used for connection of Pneumatic switch 110420 (the element consists of air ballon and a tube for diaphragm switch control in extremely humid environment or in spa / rehabilitation bathtubs. The balloon can float in water).
In connection with Signalling unit IP or Communication unit IP it enables to send emergency call to the system.
It is ususally installed above or next to a bathtub, or wherever else needed.
Dimensions: 86 mm x 86 mm x 27 mm